clean up from PR jessesquires#841

Author: jessesquires

JSQMessagesViewController/Controllers/JSQMessagesKeyboardController.m

@@ -284,14 +284,8 @@ - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(N
             if (CGRectEqualToRect(newKeyboardFrame, oldKeyboardFrame) || CGRectIsNull(newKeyboardFrame)) {
                 return;
             }
-
 
-            // we should convert
             CGRect keyboardEndFrameConverted = [self.contextView convertRect:newKeyboardFrame fromView:nil];
-            
-            //  do not convert frame to contextView coordinates here
-            //  KVO is triggered during panning (see below)
-            //  panning occurs in contextView coordinates already
             [self jsq_notifyKeyboardFrameNotificationForFrame:keyboardEndFrameConverted];
         }
     }